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| author | Maurizio Lombardi <mlombard@redhat.com> | 2014-05-27 12:48:56 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2014-05-27 12:48:56 -0400 |
| commit | b5b60778558cafad17bbcbf63e0310bd3c68eb17 (patch) | |
| tree | b06fa811548579ac50f5956c72e9f04879aba9b6 /fs | |
| parent | eeece469dedadf3918bad50ad80f4616a0064e90 (diff) | |
| download | linux-b5b60778558cafad17bbcbf63e0310bd3c68eb17.tar.gz linux-b5b60778558cafad17bbcbf63e0310bd3c68eb17.tar.bz2 linux-b5b60778558cafad17bbcbf63e0310bd3c68eb17.zip | |
ext4: fix wrong assert in ext4_mb_normalize_request()
The variable "size" is expressed as number of blocks and not as
number of clusters, this could trigger a kernel panic when using
ext4 with the size of a cluster different from the size of a block.
Cc: stable@vger.kernel.org
Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ext4/mballoc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index 6ca41e7a3fe3..11dc4e0033cf 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -3145,7 +3145,7 @@ ext4_mb_normalize_request(struct ext4_allocation_context *ac, } BUG_ON(start + size <= ac->ac_o_ex.fe_logical && start > ac->ac_o_ex.fe_logical); - BUG_ON(size <= 0 || size > EXT4_CLUSTERS_PER_GROUP(ac->ac_sb)); + BUG_ON(size <= 0 || size > EXT4_BLOCKS_PER_GROUP(ac->ac_sb)); /* now prepare goal request */ |